Efficient evaluation of partition functions of frustrated and inhomogeneous spin systems

Details Efficient evaluation of partition functions of frustrated and inhomogeneous spin systems Efficient evaluation of partition functions of frustrated and inhomogeneous spin systems

2005-01-20

arxiv.org/abs/cond-mat/0501493v1

Phys. Rev. Lett. 95, 057206 (2005)

Physics

Condensed Matter

Other Condensed Matter

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.95.057206

We present a numerical method to evaluate partition functions and associated
correlation functions of inhomogeneous 2--D classical spin systems and 1--D
quantum spin systems. The method is scalable and has a controlled error. We
illustrate the algorithm by calculating the finite--temperature properties of
bosonic particles in 1--D optical lattices, as realized in current experiments.

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